PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31RO-Ring

Subsalve Usa Llc · NSN 5331-01-648-3693 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-648-3693 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-648-3693. Primary manufacturer part number: 31R.
Features
  • O-Ring — FSC 5331
  • Outside Diameter: 25.0 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Subsalve Usa Llc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-648-3693, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Subsalve Usa Llc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-648-3693
Primary Part Number31R
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSubsalve Usa Llc
StatusACTIVE
Outside Diameter25.0 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3460-00-232-9781 INTERCHANGEABLE
Holder,cutting Tool
Cross-Reference Index
Part NumberManufacturer
31R PRIMARY Subsalve Usa Llc (USA)
Related Parts
3460-00-232-9781INTERCHANGEABLE
HOLDER,CUTTING TOOL

Frequently Asked Questions

What is NSN 5331-01-648-3693?

NSN 5331-01-648-3693 is a O-Ring, manufactured by Subsalve Usa Llc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-648-3693?

NSN 5331-01-648-3693 has 1 cross-referenced part number: 31R (Subsalve Usa Llc).

What NSN replaces 5331-01-648-3693?

There is 1 known substitute for 5331-01-648-3693: 3460-00-232-9781. Verify interchangeability with system specifications before substitution.

What are the specifications of 31R?

Key specifications for 31R: Special Features: 3.55 IN THICKNESS IN; End Item Identification: NHA-MANIFOLD, UNDERWATER LIFT BAG; Part Name Assigned by Controlling Agency: O-RING; Outside Diameter: 25.0 INCHES NOMINAL IN. 4 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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